--On 06/10/2005 02:03:36 PM -0700 Wright, Ryan P wrote:
Thanks Steve. I'm guessing you bought the pre-boxed DS18S20 ("TAI8520")
sensors from AAG for $20 a pop, then? That makes things a lot easier in
terms of cabling.=20
Jerry:=20
First some general comments: I would definitely use +5 power a
Thanks Steve. I'm guessing you bought the pre-boxed DS18S20 ("TAI8520")
sensors from AAG for $20 a pop, then? That makes things a lot easier in
terms of cabling.
Jerry:
>> First some general comments: I would definitely use +5 power and
>> simultaneous reads. For me it's about making the contr
Ryan,
Some comments from the peanut gallery. I've built a few large setups,
data/colo, networking and video production. I never counted racks, so I
guess that means they had a bunch. For us everything was driven of mean
power per volume. Everything else came and went, but changing that took
s
Our sensor network is two separate runs off of a (http://www.aag.com.mx)
TAI8595 hub.
One run goes around the ceiling and to the air handler sensors. We have
sensors in each quadrant of the room, and a humidity/temp sensor in the
center.
We placed our sensors in the center of each quadrant of t
Steve,
>> Several hundred sensors?
>>
>> Most data centers will run out of floor space before you can
>> put that many racks in the room!
>>
>> We haven't seen much "value" in a sensor per machine.. the
>> air is so mixed by the fans in the box that you really can't
>> predict much about what
Steve,
I've done a bit of research on this. I have a setup that will have in the
order of 70 sensors across 3 buses. My sensors aren't as orderly as you
will be.
As a preface, the 1-wire sensors are cheap, but the communications design
is weak IMO. It is not resilient or noise immune in the
BTW: I just checked out a new version of ewrt, and version.h is created
when you start make in the directory ewrt-0.3/src. (Compilation of the
kernel is made first of all during config/depend it's created)
I'm sure you are in trouble if version.h doesn't exist in your ewrt
directory after running
Steve,
Do you use 1-wire sensors and OWFS for your server-room monitoring? If so, that
would be the largest implementation of OWFS that I know of. Your experiences
would be quite interesting.
Paul Alfille
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Stev
Am Freitag, 10. Juni 2005 02:10 schrieb jerry scharf:
> > Our ideas only differ in one thing: You want to put additional data about
> > the module into an additional chip on the module, I will put this
> > information onto the host's harddisk/flash.
> >
> > Kind regards
> >
> > Jan
>
> Jan,
>
